Mantle protector



Oct. 10, 1933. G KOEBNlCK 1,929,698

MANTLE PROTECTOR Filed May 17, 1932 fro Patented oeeio, 1933 v :UNIT-ED :1-sT 1rss PATENT QEHCE a a ,929,s9a-, 7

' Em liG- b s sw t M i I 2 Ap lication rm 1'1, 193a. sierra-sire:

' f4 claims, (cram- 102) 'This invention relates to lamps generally. Moreispecifically this inventionrelates to fuel lamps employing fragile mantlesl j r Anfobject of thisinvention isto provide aprotector over the mantle of a fuel fed lamp-in such a manner that the mantle and'protector maybe attached to the lamp as ajunit and shield the mantle-from objects tending toco'me'in contact therewith; j Q

Still another object of "this invention is" to provide annit; to lamps employing mantles adapted to fit over -the, lamp. mantleand be attached as a unit therewith for'shielding the mantle from Obf jects'tending tocome. in contact therewith.- .1.1

a mantle-protector forgaslamps such that the protector maybe slipped directly over the mantle jat aspaced'distance therefrom and attached to the fuel feed pipe. F I I I from a fine to a relatively coarse mesh, is shaped into an elongated pouch and provided with 'an' annular member or an adjustable'clamp member atithe open end for attachment to thefuel feed E pipe of a. gas mantle type of lamp.

This screen is displaced from the outer surface of the mantle a slight distance depending'upon the coarseness of the mesh thereof sothat the minimum of shadow will be cast by it i nthe light 135 transmitted from the mantle. In a modified form of this invention the screen is attached to the mantle support and retained.

in position thereby. r

A more detailed impression of this invention may be obtained from the specification when read in conjunction with the drawing wherein Fig. l of the drawing illustrates a vertical frag mentary sectional view of the construction of an, embodiment of this invention; Fig. 2 shows a illustrate detailviews of the fastenerused for retaining the. mantle protector in position over the mantle; Fig. 5 shows a modified form of this invention employing ascrew adjusted fastener;

M another modified form of this invention. Fig. 7 is 'a top view of the form of this invention illustrated in Fig. 6; Fig; 8 shows an enlarged'detail I view of the fastener used in the modified form, .55 of this invention illustrated in Figs. 6'and '7. Fig.

A further object of thisinvention is to provide 'Other'and further object-sci this invention will, be appa ent to thoselskilied' in the art to which as illustrated in Fig. 1. The wire 6,may be made modified form of this invention; Figs. 3 and-4 I V of any suitable materials such as iron or copper Fig. 6 is a sectional view in side elevation of still 7 9- shows in partial section still another form of this invention, and Fig. 1 illustrates an alterna l tive form offastener used accordance: with 'positioned-hole'to receive the fuel-feeding tube 4'.

A thin'wire'fi covered with asbestosis cemented tothe'mantle 2' -at-the upper extremity thereof I for: retaining the mantle upon the member 3;

Suitable refractory compositionswhichharden uponheating'such as thoria," or magnesiafmixed to forrna cream with materialssuch as glueg-or water g1ass,- ma be used to emem; the mantle '2 .5 tofthe member 3 and retain the asbestos covered wire 5 in osition. "A thinw ire member 6 is provided to the open end" of the; screen-l to cooperate withf-this-screen and thefmember- 3 in retaining the I screen imposition over the -'mantle If -'de"-' sired; t is screenmay' be slipp'ed completely'over themember 3 anden gagethe'tube ias'illu'strated in Fig; 9 of the drawing. The member 6 is pref-- erably attached to the-screen at one or two points by a spot welding, however, this is not necessary as the wire member 6 may be threaded through the screen in one or more places and the relative positions thus retained. p

In Fig. 2 is-illustrated a formof the screen 1 before it is positioned'over the mantle 2. While a this screen is illustrated as having a seam 1a, it. is of course, understood that by properly spinning a pouch shape member from a certain section of screening the seam may be eliminated. -In positioning' the member 1 over the mantle the Wire'6, which is provided with a loop '7 at one endthereof and a loop 8 at the other end thereof is adjusted so that a kink 9 formed adjacent to the loop a engages the section 10' adjacent to theloop 7 and thus partially closes the opening of the screen 1 and is preferably made so as to maintain slight form of the fastening arrangement adapted for usefwith" the wire 6a corresponding to the wire 6 ofFig. 3, is illustrated; In this case the wire 6a is provided with loops 11 and 12 at the, extremities thereof, which are adapted for engagement when screen pouch.

Where it is desired to receive more positive fitting of the screen over the top 4 the form of this invention illustrated in Fig. 5 is preferable. A band 13 having holes' formed in the extremities thereof to receive the screw 14 is applied to the screen pouch 1. In use the screw 14 is tightened until the band 13 causes the open end of the pouch toengage thetube 4 and retain the pouch in position. e

In Figs. 6, '7 and 8 another modified form of this invention is illustrated in which the screen 1571s, retained in position'u'pon the flange 16 of the supporting member 20. Pipe 18 is attached to the =tle,'a pouch shaped screen and means including a section 19 for feeding fuel through the hole formed in the member 20 to the gas mantle 21. The mantle 21 is retained in position upon the member 20 by the asbestos thread 22.

The screen 15 is retained in place by the member. 17,;il1ustrated in Figs. .6, 7 and 8, which is made of a piece of wire or iron, copper, brass or thelike,,distorted out of shape in such a manner that the sections 17a engage the upper surface of'the, flange as illustrated in Figs. 6 and 7, and the sections 17b engage the lower peripheral surface. In applying this member 17 it is preferred to have the screen attached to it and to spring the sections 1.7a over the edge'of the flange 20.- In

this case it is desirable to make the member ,ofv

resilient material such as is not readilyaffected by temperatures developed by'the lampr "Another form of this invention is illustrated'in Fig. 9 of the drawing wherein thescreen protecting member 23 is supported direct on the fuel pipe 25 by the wire 24. The wire 24 may be threaded through the screen in several places or it may be attached thereto by spot welding. In order to facilitate attachment of the screen to the member26 when the mantle 2'7is larger than the a pipe 25, a section of the screen is cut away adja: cent to the opening; asillustrated in Figs. 2 and 5 of the drawing; this permits expansion of the mouth of the screen pouch so that the screen may be placed over the mantle and the mantle supporting member. After the screen is in position the mouth thereof is contracted by-the wire 24 which is illustrated slightly enlarged in Fig. 10, is either twisted together or fastened in any of the different ways illustrated.

While I have described several modified forms of my invention in considerable detail, it is of course, understood that I do not desire to limit it specifically in detail to anyone of the particular forms except in so far 'as is defined .by the appended claims.

What I claim and desire to secure by Letters Patent of the United States is as follows:

1. In gas mantle protectors the combination of a gas mantle, means for supporting said manband shaped" member having ends thereof adjustmy attached together for supporting said pouch shaped screen over said gas mantle. V

2. In gas mantle protectors the combination of a gas mantle, means for supporting said;mantle, apouch shaped screen positioned over said mantle; a band shaped member attached to said pouch shaped screen for supporting said screen over said mantle, and means attached adjacent to the ends of said band shaped member for adjusting said band shaped member so that said screen may be readily attached or removed.

3. In gas mantle protectors the combination of a gas mantle, means for supporting said mantle, a screen protectorsurrounding said mantle and means for supporting said screen protector includ ng an elongated member having. means positioned on the ends thereof for .detachably supporting said screen protector in place. I v

,4. In .agas mantleprotector the .combination of ages mantle, means for supporting said mantle,a screenpouch shaped protector having an open end and surounding said mantle, means for supporting said screen including a band and means for retaining the ends of said band in engagement and for contracting the open end of said screen about said mantle supporting means.

1 VEMIL G. KOEBNICK. 

